The GeoAngle class defines an angle that may be given in degrees or radians (but not both).
It automatically converts angles to degrees and radians for easier access
The GeoCircle class defines an geometric circle with radius.
The class may be used to calculate coordinates on the circle given an angle in radians or degrees.
The GeoEllipse class defines an geometric ellipse with horizontal radius xRadius, and vertical radius yRadius.
The class may be used to calculate coordinates on the ellipse given an angle in radians or degrees.
The GeoPath class is used to generate a smooth Path by rounding corners with cornerRadius units from the corner.
If cornerRadius is zero, the coordinates are converted into a Path without rounding corners.
Otherwise, the start and end of the curve on two adjacent sides is determined by cornerRadius using a bezeir curve.
A stateless widget for clipping a shape (implementing IGuiShape interface) around a child widget.
An array of shadows may be defined to create impression of elevation (aka floating effect).
The GuiNormalizeGradient class takes a user-defined 2-dimensional color maps and normalizes it
to contain equal number of stops in each row of the color map, and inserts the colors for stops
at 0.0 and 1.0 if missing.
Each row may be defined by an arbitrary number of gradient colors GuiGradientColor.
GuiNormalizeGradient will automatically reconstruct the colormap so that each row has equal number of
columns or gradient colors. If stops for 0.0 and 1.0 are missing from either row or column, it is
automatically computed based on colors defined outside the range. If none were provided, then
a transparent color is assumed.
